EXPERIMENTAL RESEARCH AND APPLICATION OF COPPER OXIDE FLOTATION USING THE COMBINED COLLECTORS OF BENZOHYDROXAMIC ACID AND BUTYL XANTHATE
Benzohydroxamic acid with double dentate can react with copper to form cyclic hydroxyl oxime acid copper chelate,indicating a good selectivity for copper oxide minerals flotation,especially for malachite.The flotation results of the pure malachite mineral show a strong synergistic collecting effect between hydroximic acid and xanthate at a ratio of 3.5:1,achieving a malachite recovery of 95.5%when certain sodium sulphide is used as a vulcanizing agent in the optimal pH range.Thanks to the synergistic collecting effect,the flotation recovery of malachite from a real refractory ore flotation can reach over 92%under the optimum condition,a 12%higher than the recovery achieved with the conventional collectors.In industrial production,the flotation indexes of the copper concentrate are high,leading to a high efficiency utilization of copper oxide resources.
Copper oxide Combined collectors Synergistic floatation Benzohydroxamic acid
Daixiong Chen Jun Xiao Chunming He Xiaodong Li
Hunan Research Institute for Non-ferrous Metals;Hunan Provincial Key Laboratory for Complex Copper Lead Zinc Associated Metal Resources Comprehensive Utilization
国内会议
长沙
英文
48-54
2016-10-01（万方平台首次上网日期，不代表论文的发表时间）